Super nice vintage authentic Boston Celtics  Nike warm-up jacket.  This jacket was purchased brand new by my father at the FleetCenter team store during the 1999-2000 season. 

I don't believe it's ever been worn... amazingly clean and no smells or yellowing.   All lettering is perfect.  This model actually has pockets... kinda cool.

Measurements are:

WIDTH: 24"

LENGTH: 32.5" (top of collar to bottom hem)